[InfoWorld columnist Dave] Rosenberg is more disturbed by the bandwagon jumpers: the companies, mostly startups, belatedly going open-source in order to "ride a trend," while paying only lip service to the community and its values. Take Aras Corp., a provider of Windows-based product lifecycle management (PLM) software that in January decided to go open-source. Rosenberg depicted the firm in his blog as an opportunistic Johnny-Come-Lately. "I'm not impressed when a company whose software is totally built on Microsoft technologies goes open-source," said Rosenberg, who even suspects that the company is being promoted by Microsoft "as a shill" to burnish Redmond's image in open-source circles.